Gas-holder



HILL & WOOD;

Gas Holder.

No. 13,754. Patented Nov) 6, 1855.

E l E a j i N. PEYERS. mvmwgn hu. Wnninmon. D. C.

UNITED STATES ENT oE EioE.

STEPHEN HILL AND W. J. WOOD, OF ROCHESTER, NEW YORK.

GAS-HOLDER.

Specification forming part of Letters Patent No. 13,7 54, dated November 6, 1855; Reissued January 23, 1866, No. 2,149.

To all whom it may concern:

Be it known that we, STEPHEN HILL and VM. J. WOOD, both of the city of Rochester, county of Monroe, and State of New York, have invented certain new and useful Improvements in Portable Gas-Holders and the Method of Applying Them; and we do hereby declare that the following is a full and accurate description of our invention, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a plan. elevation.

The holder consists essentially of one or more vessels A, B which are each divided longitudinally in the middle by a diaphragm (Z of airtight cloth or other material. Tubes for'the admission of gas or air, are inserted in each of these divisions. here two or more vessels or holders are used, the divisions as formed by the diaphragm are connected in pairs. Thus the divisions a a are connected by the tube T and the divisions Z) Z), by the tube T both series of divisions however, being kept distinct from each other. It will now be evident on referring to the drawing, that if one series of the divisions a a be perfectly filled with air, the diaphragms (Z cl will be pressed close to the-side c c, and all air will be expelled from the divisions b b. If now, the tube T be opened, and gas be forced in through the tube T, all the air in the gas holder will be expelled, and the vessels will be completely filled with gas, and if a reverse action be now had, and air be forced through the tube T, the gas will be expelled through the tube T, and may be inflamed at an appropriate burner.

Various devices may be used for forcing in the air which expels the gas-a small pump, driven by clock-work, being deemed most eflicient. It is evident, that instead of a diaphragm as shown in the drawing, an airtight bag contained in an airtight cham Fig. 2 is a sectional ber, will subserve the same purpose, though not so simply.

The objects and advantages of this invention are, that a convenient means is hereby provided for lighting railroad cars at night, and as the expulsion of the gas is effected by an elastic fluid which possesses little or no momentum when in motion, all flickering arising from sudden variations in the pressure is avoided.

This apparatus also offers a convenient gasholder for blowpipe purposes, and if two gases (as oxygen and hydrogen) be used, great facility is afforded by the use of two vessels connected in a well known manner, and as there is no heavy fluid. to expel from the vessel, and no resistance olfered by any weights or springs, a very slight pressure of gas is sufficient to fill the l1olderso slight that in order to supply a train of cars with gas all that is requisite is to connect the proper tube from the holder with the gas pipe at the usual stopping place, when on giving vent to the air which has been forced in the apparatus will be speedily and completely filled.

As this invention is chiefly designed to apply to railroad cars, omnibuses and other vehicles, we may state that it may be attached either along the outside of the top, in the upper corners of the inside, or any other position deemed most convenient and favorable.

What we claim as new and desire to secure by Letters Patent is The combination of the pipes T, T with the diaphragm 61 within the gasholder for the purpose of applying an equable pressure to fill the gas holder with gas and to expel the gas therefrom.

STEPHEN HILL. a. 8. w. J. woon. a 3.

Witnesses:

JOHN PHIN, A. K. AMsDRoN.

[Fms'r PRINTED 1912.] 

